Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Barbara M. Trabold"'
Autor:
Vincenz Sandfort, Barbara M. Trabold, Amir Abdolvand, Carsten Bolwien, Philip St. J. Russell, Jürgen Wöllenstein, Stefan Palzer
Publikováno v:
Sensors, Vol 17, Iss 12, p 2714 (2017)
The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement
Externí odkaz:
https://doaj.org/article/6a267461c1cc4ced821ea095540d64ac
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Selective detection and chemical analysis of trace gases at concentration levels of parts per million (ppm) and below is of critical importance in environmental monitoring [1] and medicine [2]. Spectroscopic techniques offer high gas-type selectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9108e0f65b2f87b219a9a7bc4ce5fe0a
https://doi.org/10.1109/cleoe-eqec.2019.8872978
https://doi.org/10.1109/cleoe-eqec.2019.8872978
Autor:
Mallika I. Suresh, Barbara M. Trabold, Johannes R. Koehler, Michael H. Frosz, Francesco Tani, Philip St.J. Russell
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c3e828625f421448e45e9749c5d0714
https://doi.org/10.1364/cleo_si.2019.sf1e.6
https://doi.org/10.1364/cleo_si.2019.sf1e.6
Publikováno v:
Physical Review Applied. 10
We investigate refractive index changes caused by femtosecond photoionization in a gas-filled hollow-core photonic crystal fiber. Using spatially-resolved interferometric side-probing, we find that these changes live for tens of microseconds after th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::084821199ce31b58773e30161a8fd296
https://doi.org/10.1103/physrevapplied.10.064020
https://doi.org/10.1103/physrevapplied.10.064020
Publikováno v:
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF).
We investigate long-lived photoionization-induced refractive index changes in gas-filled photonic crystal fiber by observing the frequency shift of a dispersive wave emitted by a soliton propagating against the ionizing pulse.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0fd0e48be478b55519c19a55e66bcf9
https://doi.org/10.1364/np.2018.npw4c.4
https://doi.org/10.1364/np.2018.npw4c.4
Autor:
J. R. Koehler, Francesco Tani, Barbara M. Trabold, Philip St. J. Russell, Felix Köttig, Mallika Irene Suresh
Publikováno v:
High-Brightness Sources and Light-driven Interactions.
We observe long-lived refractive index changes in the hollow core of an argon-filled anti-resonant-guiding photonic crystal fiber, caused by plasma formation through femtosecond pulse compression and probed interferometrically through the fiber cladd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::187f978d5187e65b18ebb711f391052c
https://doi.org/10.1364/hilas.2018.hw3d.5
https://doi.org/10.1364/hilas.2018.hw3d.5
Publikováno v:
Conference on Lasers and Electro-Optics.
We report CARS in hollow-core gas-filled PCF. The results pave the way to single-shot broadband (>4000 cm−1) CARS under ambient conditions. A detection limit of 300 ppm was reached with 200 mW overall laser power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b16694258730f19642e20801feb4a1
https://doi.org/10.1364/cleo_si.2018.sm2k.5
https://doi.org/10.1364/cleo_si.2018.sm2k.5
Publikováno v:
Optics letters. 42(17)
We report the use of coherent anti-Stokes Raman spectroscopy (CARS) in gas-filled hollow-core photonic crystal fiber (HC-PCF) for trace gas detection. The long optical path-lengths yield a 60 dB increase in the signal level compared with free-space a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b63ae209e42e1e2a813b66085be89c90
https://pubmed.ncbi.nlm.nih.gov/28957084
https://pubmed.ncbi.nlm.nih.gov/28957084
Autor:
Vincenz, Sandfort, Barbara M, Trabold, Amir, Abdolvand, Carsten, Bolwien, Philip St. J, Russell, Jürgen, Wöllenstein, Stefan, Palzer
Publikováno v:
Sensors, Vol 17, Iss 12, p 2714 (2017)
Sensors (Basel, Switzerland)
Sensors (Basel, Switzerland)
The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::7f6057321b3ccdbf95a617aaf278971a
https://publica.fraunhofer.de/handle/publica/251081
https://publica.fraunhofer.de/handle/publica/251081
Autor:
R. Tyumenev, Michael H. Frosz, Philip St. J. Russell, Luisa Spath, Barbara M. Trabold, G. Ahmed
Publikováno v:
Optics Letters. 44:2486
We report coherent anti-Stokes Raman spectroscopy (CARS) in a gas-filled single-ring hollow-core photonic crystal fiber (SR-PCF) using a pump-probe configuration. The long collinear path length offered by an SR-PCF strongly enhances the efficiency of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16c4dbe7dfae06b4a683de2141741451
https://doi.org/10.1364/ol.44.002486
https://doi.org/10.1364/ol.44.002486